Question

有没有人知道在Gluon Desktop（ParticleApplication）应用程序的FXML控制器中是否有任何简单的方法可以使用依赖注入？ @Inject已经用于

之类的东西了

public class HomeController {

    @Inject ParticleApplication app;

    @Inject private ViewManager viewManager;

    @Inject private StateManager stateManager;

（作为框架的一部分）但我希望能够@Inject我自己的对象。

编辑：答案建议使用Gluon Ignite，但我仍然无法搞清楚。以下是我尝试过的一些代码：

我的ParticleApplication类：

package com.gluonapplication;

import com.gluonhq.ignite.guice.GuiceContext;
import com.gluonhq.particle.application.ParticleApplication;
import com.google.inject.AbstractModule;
import javafx.scene.Scene;

import java.util.Arrays;

public class GluonApplication extends ParticleApplication {

    private GuiceContext context = new GuiceContext(this, () -> Arrays.asList(new GuiceModule()));

    public GluonApplication() {
        super("Gluon Desktop Application");

        context.init();
        System.out.println("From within GluonApplication Constructor: " +
                context.getInstance(TestClassToInject.class).testDependancy.testString
        );
    }

    @Override
    public void postInit(Scene scene) {
        setTitle("Gluon Desktop Application");
    }

    class GuiceModule extends AbstractModule {
        @Override protected void configure() {
            // Use just in time injection.
        }
    }
}

我的控制器类：

package com.gluonapplication.controllers;

import com.gluonapplication.TestClassToInject;
import com.gluonhq.particle.application.ParticleApplication;
import com.gluonhq.particle.state.StateManager;
import com.gluonhq.particle.view.ViewManager;
import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javax.inject.Inject;

public class PrimaryController {

    @Inject ParticleApplication app;

    @Inject private ViewManager viewManager;

    @Inject private StateManager stateManager;

    @Inject private TestClassToInject testClassToInject;

    @FXML
    private Label label;

    public void initialize() {
    }

    public void postInit() {
        System.out.println("From within controller's postInit() method: " +
                testClassToInject.testDependancy.testString
        );
    }

    public void dispose() {
    }
}

然后我的两个班级作为依赖项创建：

package com.gluonapplication;

import javax.inject.Inject;

public class TestClassToInject {
    @Inject
    public TestDependancy testDependancy;

    public TestClassToInject() {
    }
}

package com.gluonapplication;

public class TestDependancy {
    public String testString = "This is a test string";

    public TestDependancy() {
    }
}

最后我的Gradle文件：

apply plugin: 'java'
apply plugin: 'application'

repositories {
    jcenter()
    maven {
        url 'http://nexus.gluonhq.com/nexus/content/repositories/releases'
    }
}

mainClassName = 'com.gluonapplication.GluonApplication'

dependencies {
    compile 'com.gluonhq:particle:1.1.0'
    compile 'com.gluonhq:ignite-guice:1.0.0'
}

"From within GluonApplication Constructor: " + context.getInstance(TestClassToInject.class).testDependancy.testString打印得很好，所以我认为我有依赖类，Guice配置好了。但是，System.out.println("From within controller's postInit() method: " + testClassToInject.testDependancy.testString);在控制器中不起作用，因为testClassToInject在使用时为空。

Answer 1

你可以使用支持Dagger，Guice和Spring依赖注入的Gluon Ignite（http://gluonhq.com/open-source/ignite/）。 Gluon Ignite是一个开源项目，您可以在存储库网站的测试目录中找到一个示例：https://bitbucket.org/gluon-oss/ignite/src/c85197b33852/src/test/java/com/gluonhq/ignite/?at=default

如何在Gluon Desktop应用程序中使用依赖注入？

1 个答案: